Predominance of M1UK type strains and their clinical associations in invasive Streptococcus pyogenes infections in Japan, 2023–2025 - Shigeo Hanada; Misako Takata; Miyuki Baba-Morozumi; Junichi Sasaki; Satoshi Iwata; Shigeki Nakamura; Kimiko Ubukata (European Journal of Clinical Microbiology & Infectious Diseases, 2026)